Well, I wonder if my trouble with compiz and sleep resume is a compiz problem with ATI radeon drivers, not a problem with sleep resume on my timeline.
Screen brightness works out of the box for me. :-) And actually, it turns out my "power management" button in the top right does go on and off when I am on battery. It does nothing when I'm on mains power. I guess thats as it should be. I did some battery tests after I wrote that report, and dispite the new ATI drivers I still only got just over three hours til full discharge with discrete graphics. Thats with all the power management stuff enabled and medium screen brightness. And I was just playing some mp3s and doing a little coding. As I mentioned, its even worse with hybrid graphics cause the radeon card just sits there throwing out heat. I think just having the ATI card is a battery killer right now until it becomes possible to switch it off. Look forward to the Linux hybrid graphics effort to come to fruition. I hope they focus on just being able to turn the discrete cards off in the short term. Damon. 2009/6/25 Sean Russell <[email protected]>: > Thanks for the report, Damon! > > Maybe it is time for us to start collecting lspci, BIOS, and OS install > config dumps, because I'm seeing widely varying reports of feature success > here. For example, sleep/resume has worked for me since the first time I > tried it, and I haven't changed anything (effects are still on). On the > other hand, the touchpad on/off button is strictly one-way for me, but > appears to be working for others. > > Have you done any battery benchmarks between the discrete and hybrid modes? > > Finally, I've also resolved one issue on my Acer: screen brightness control > wasn't working. The following command enables it (it needs to be run every > time you log in to X): > > xrandr --output LVDS --set BRIGHTNESS_CONTROL legacy > > --- SER > > On Jun 24, 2009 11:43 PM, "Damon Rand" <[email protected]> wrote: > > Hi, > > I've worked around a few issues that people might be interested in. > > 1. You can get the latest Acer BIOS 1.20 now which enables a switch > between Hybrid and Discrete graphics on my 4810TG with Radeon graphics. > > 2. When you switch to discrete graphics I can confirm that the ATI > Catalyst 9.6 drivers work a treat. And the drivers lower the GPU power > consumption and improve heat and battery life under 9.04. > > 3. There is a bug with the WIFI card on WPA2 security with 11n routers. > I worked around this by disabling 11n support. You do this by setting > param 11n_disable50=1 on the iwlagn kernel driver. Apparently its > fixed properly in the latest kernal but I tried 2.6.30.something and > it didn't do much for me. > http://intellinuxwireless.org/bugzilla/show_bug.cgi?id=1934 > > 4. Resume from standby/hibernate was freezing on me with compiz > enabled. Turn off all visual effects and it works fine. > > And the things I'm still waiting on: > > 1. When I disable the touchpad I need standby/resume to get it working > again. > 2. Video playback crashes with Catalyst drivers. Apparently this will > be fixed in 9.7. > 3. The power management button seems to do nothing for me but I don't > really mind too much. > 4. Don't want to upgrade my kernel to get the ahci stuff so still on > ide for now. > > Damon. > > _______________________________________________ > Mailing list: https://launchpad.net/~acertimeline > Post to : [email protected] > Unsubscribe : https://launchpad.net/~acertimeline > More help : https://help.launchpad.net/ListHelp > _______________________________________________ Mailing list: https://launchpad.net/~acertimeline Post to : [email protected] Unsubscribe : https://launchpad.net/~acertimeline More help : https://help.launchpad.net/ListHelp
